Mechanical movement



A. L. POWELL MECHANICAL MOVEMENT 3 sheets-sheet 1 Original Filed Dec. 10. 1919 Svwew tor MW H \1 Nb U .M f f,

3 ML 4? #7 H 33 mm N.

(v 1/9 71). Powell Oct. 28 1924. 7 1,513,181

A. 1.. POWELL MECHANICAL MOVEMENT Original Filed Dec. 10 1919 3 Sheets-Sheet 2 A. L. POWELL MECHAQIGAL MOVEIVIENI Original Filed Dec. 10 1919 3 Sheets-=Sheet 5 KW WEN /& W\\\\\ I 1:

Patented ct. 28, 1924.

NITED STATS,

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ALVAH L. POWELL, or lVIILEiS OITYQMONTAN'A, AssIGNoIt, BY MEsNE ASSIGNMENTS,

To THE A. L. 'TPOWELL rowna COMPANY rNcon-ronarnn, A CORPORATION or Mo MECHANICAL MOVEMENT.

Application filed. December 10, 1919, Serial No. 343,958. Renewed- November 9, 1923. a,

To all whom it may concern:

Be it known that I, .ALVAH L. POWELL, a citizen of the United States, a resident of Miles City, in the county of Custer and State of Montana, have invented a certain new and useful Improvement in Mechanical Movements, of which the following is a. full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

This invention relates to certain new and useful improvements in mechanical movements and relates more to that particular line of power transmitting mechanisms known in the art as planetary gearing. Some of the principles embodied in this ap plication are suggested in my co-pending applications 107,308 and "142,664 reference being had to Fig. 7 I

The principal object of the present invention is the novel manner in which the force of power is transmitted from a drive shaft to a driven element by means of orbital mov-' ing elements disposed between 1 the drive shaft and the driven element.

Another object of the present invention is the provision of a driven element WhlCll'lS rotatably suspended upon the enclosed casmgr Another object of the invention residesin the 'novel manner in whichthe driven element is balanced by disposing to either side thereof and in gear therewith the 'interme.- diate power transmitting gear or gears.

While 'I have set forth above some of the objects of the present invention it will. of course, be understood that others will present themselves to those skilled in the art:

after reading the following specification in connection with the attached: drawlngs wherein I have shown merely forthe purpose of illustration the preferred-embodimentsof the same. Y

In the drawings Fig. 1 is a transverse section illustrating a form employing peripheral gearing; Fig. 2 is a vertical section taken on lines 2-2 Fig. 1; Fig. 3'is a cross sectional view of the driven element; Fig. 4 is a view similar to Fig. 1 but in this instance using frictional contact between the various elements; Fig. 5 is a perspective View of a modified form in keeping with the principles set forth in the foregoing views;

journaled through the centerof these casings is a drive shaft 2 having keyed thereupon a drive pulley 8 which is connected by any suitable means to the power. producing mechanism. Alsokeyed to the shaft 2' are pinions 44 whiclr'are arranged within the casing 1. The inner wall ofthe casing 1 adjacent their open ends are provided with racked teethindicated at 5+5. Interposed between the: pinion 4L- on the drive shaft and I the. rackedv teeth 55, on the casing'is'a gearin'g 66. This gearing is adapted to mesh racked teeth on the casing 1 which results in theorbital movement of the gears 6' about the shaft 2 and at. the same time independent rotation about their own axis. Eachof the gears 6 :arefprovided with secondary gear teeth 7 which are adapted to co-act with one of the racked faces 8 of a driven element9.

This driven element is suspended toward the 1 open: ends ofthe casing-'1 uponrims 10-1Q and inv order-to reduce the frictional engage ment between the suspended element 9. and the casing l I provide anti-friction bearings indicated at '11- 11.

' In order that gears 6 be held in'their proper position within-the casing 1, each of 'saidl gearsi's peripherally slotted as indicated at 12 andfinto each slot an inwardly projecting rib or flange is arranged to extend. V The casing .1 as well as the pinion 4 is provided with these flanges 13; The outer faceof the driven element, 9 is provided with with theteeth in pinion at and .also the lift) gear teeth in the form shown in Fig. 1 andv by which the power may be taken oif of the same by a geared pinion or the-like.

In the form illustrated in Fig. 4: I rely solely on frictional contact between the various parts to transmit the power from the drive shaft 2 to the driven element 9 and in this case the peripheral portion of the ele ment 9n1ayzbe ;S1l'l00tl1 or uninterrupted so that power may be taken therefrom by any suitable form of belt or the like.

. Referring more particularly to the illustrations of Figs. 5 6, and 7, it will be noticed that in these cases I provide an aligned drive and driven shaft, lt indicating drive shaft and the driven shaft. An openended casing illustrated at 16 is rigidly sup.- ported and has transversely journaled therein the drive shaftlat. This drive shaft 1 1 has keyed to it a pinion 17 which is suitably geared and also provided with a circular ridge or flange 18. The casing 16 is provided with an internal rack indicated at 19 and also an inwardly extending portion 20 in alignment with the flange of the pinion 17. Interposed between the pinion 17 and the internal rack 19 and in mesh therewith is a gear 21 which gear is also provided with gear teethindioated at 22. The dr'ven shaft 15 is supported in axial alignment with the drive shaft by a standard or bracket 23.

Keyed to the shaft 15 is a pulley 24: oneside of which is preferably ofranopen nature and geared or racked as indicated at 25. This rack is adapted to mesh with the secondary gears on the gearEZI. The pulley 24; may be geared as shown or if desired the power therefrom-maybetaken by abeltin which case theperiphery would be smooth somewhat as suggested in Fig. l. Thegears 21 are provided with; peripheral recesses as suggested in the foregoing figures and into these recesses the flanges or-ridges l8 and 20 on the I pinion and -casingrespectively are adapted to extend therebysuspending the gears 21 in their proper working position;

In the modified form shown in Fig. 7 the" pulley EZQ/maybe provided with an inwardly extending tongue 25 whichis adapted to enter into a recess 26 peripherally arranged within the gear 21.

Briefly described the operationof the mechanism is as follows e lower being applied to theshaft 2 revolvesthe pinions 4 and causes the gears 6 to travel in an'orbital path'aboutthe shaft 2; each-of the gears will also'be, caused to rotates-bout their own axls, owing to the nter-gearing between the same-and the stationary casing. These-gears 6 are co-operatively arranged so as to communicate their'peculiar cycle of movement tothed-riven element 9. I

While I have described in the foregoing the preferred embodiments of theinvention it will, of course be'und'e-rstood that certain variations therefrom maybe resorted to wit-houtsacrificing anyofithe spirit. of the invention and the scope of protection contemplated will appear fromthe claims.

hat I claim is 1. In a power transmitting mechanism comprising a casing, a drive element arranged concentrically within the casing, gears disposed between and coactive with the drive element and the wall of the casing, means extending from thewall of the casing and the drive element and engageable with the gears to hold the said gears againstlateral displacement-in bothndirections, and a driven. element .zoperatively associated with the gears.

2. In a .power 7 transmitting mechanism comprising acasing having anii-nwardly directed flange, a drive element arrangedconoen'trically within the, casing, said. element provided with a "peripheral flange, gears disposed betweenandcoactive with the, drive element and the wallof thecasing and each gear. having a slot within its periphery for the reception. of the respeetiveflanges onithe wall of the, casing and the driveelement for maintainingthe gears inposition, and, a driven element operatively associated with the gears. r

3. In a gearing of the class described comprising a stationary casing having an -internal; rack' and: an inwardly {directed flange, a driveshaft.journaled. within the casing andhaving a drive pinionthereon, saidpinion:having a peripheral, flange, a gear interposed betweentherack. ofthe casing-and the drive pinion andprovided {witha peripheral slot for. the reception gof,;-the respective I flanges on thecasing and the drive pinion for maintaining. the 'gear in operative pos1- tion and a driven element operatively asso mated with sa1dsge'ar.. r

4. In a power-itransmltti-ng anechanism comprising aeasing, a- ,driveelementarranged within the-easing gears disposed; between and coact ivewithjthe drive element and a wall: of-the-casing peripheral inter fitting means-betweenthegears intermediate the sides thereof and theicasing andqdrive' elementfor holding the said gears against lateralmovement in either direction, and a driven element 'operatively associated with said gears. t

In testimony whereof I hereunto affix my signature, thislOth day of: December, 1919.

ALVAH L. POW-ELL. 

